This may not be a problem. What were you doing when it happened?
Were there any apparent problems with gfs/dlm/clvm/fencing?
If it happens again, collect the output from the following
commands on all cluster nodes (in addition to /var/log/messages):
mount
cman_tool status
cman_tool nodes
cman_tool services
ps ax -o pid,stat,cmd,wchan
cat /proc/cluster/sm_debug
cat /proc/cluster/dlm_debug
cat /proc/cluster/lock_dlm/debug

I'll set this to to be a duplicate of 217626, as it looks identical to me. If
you see it again with that patch or release then feel free to reopen this one.
*** This bug has been marked as a duplicate of 217626 ***

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